Historical clue formulations

• Chimney sweep's target — 2025-04-23
• Chimney duct — 2024-07-29
• "So they flew through a flaw in the ___": Ogden Nash line — 2024-06-03
• Chimney vent — 2024-03-20
• Where there's smoke — 2023-04-09
• Chimney duct — 2022-01-24
• Something a chimney sweep sweeps — 2018-04-15
• Chimney vent — 2017-06-06
• Where there's smoke — 2014-06-25
• Chimney feature — 2013-11-19
• Drawing device — 2008-10-03
• Current director — 2005-06-03
• Chimney channel — 2004-05-11
• Smoke conveyor — 2002-04-10
• Drawing device — 2001-12-08
• Chimney part — 2001-07-03
• Air duct — 1999-06-02
• Chimney channel — 1998-09-23
• Where there's smoke — 1998-08-06
• Chimney channel — 1998-02-18
• Chimney duct — 1997-10-14
• Sooty shaft — 1997-08-20
• Kind of pipe — 1997-05-14
• It's full of hot air — 1996-12-19
• Fire exit? — 1996-10-04
• Chimney channel — 1995-07-26